Exposure to the modest RF energy from a cell phone is highly unlikely,
> in my view, to cause reduced sperm count. Even if you place the cell
> phone at your belt line and use a headset, there is insufficient
> energy to cause temperature elevation sufficient to impact male
> fertility.
That does assume that the only possible mechanism by which RF can interact with the human body is heating. And that the only site of interaction that can possibly affect fertility is the testes.
Though I must admit that my first reaction to the news story was "I'm sure glad I don't talk on the phone from that end of me!"
Dave